1.  In which year, there has been a maximum percentage increase in the amount invested in Raw materials as compared to the previous year?

A. 1996
B. 1997
C. 1998
D. 1999
E. 2000

Answer: Option A

Explanation:

The percentage increase in the amount invested in raw-materials as compared to the previous year, for different years are:

For 1996 =[(225 - 120)]% = 87.5%.
120

For 1997 =[(375 - 225)]% = 66.67%.
225

For 1998 there is a decrease.

For 1999 =[(525 - 330)]% = 59.09%.
330

For 2000 there is a decrease.

Therefore There is maximum percentage increase in 1996.